The zero gas consumption drum air thermal adsorption dryer is a device that uses thermal adsorption technology for drying. Its working principle is to adsorb moisture from the air to the surface of the adsorbent through blowing at specific temperatures and humidity, and then remove the moisture from the surface of the adsorbent through heating and other methods to control the humidity in the air and achieve the purpose of drying. This model is widely used in industries such as food, pharmaceuticals, and chemicals.